Journal lubricator



May 9, 1933' F. w. MARTIN 1,907,847

JOURNAL LUBRICATOR Filed May 14, 1927 2 Sheets-Sheet l avwemtoz 351aMomwq/ May 9, 1933.

F. w. MARTIN JOURNAL LUBRICATOR Filed May 14, 1927 2 Sheets-Sheet 2S'nwwtoz W M Z; $1 GHQ/$ 4.,

4 i -Ma) Patented May 9, 1933 UNITED STATES PATENT OFFICE FREDERICK W.MARTIN, OF BRONXVILLE, NEW YORK, ASSIGNOR T FRANKLIN RAILWAY SUPPLYCOMPANY, OF NEW YORK, N. Y., A CORPORATION OF DELAWARE JOURNALLUBRICATOR Application filed May 14,

This invention relates to lubricators for railway vehicle a'xle boxesand is particularly applicable to locomotive driving boxes.

The primary object of the invention is the required for such refillingis greatly reduced How the foregoing together with other objects andadvantages are obtained Wlll be clear from the following descriptionconsidered together with the accompanying drawings which illustrate theinvention in j its preferred form.

Of the drawings, Fig. 1 is an end view, partly in elevation and partlyin section, illustrating my improvedlubricator applied to a locomotivedriving box of a well known construction.

Fig. 2 is a top view of the lubricator taken partly in elevation andpartly in section as .indicated by the line 22 of Fig. 3.

Fig. 3 is a side view of the lubricator taken on the line 33 of Fig. 2.

In the. drawings, the reference numeral 4 indicates the driving axlejournal which is surrounded by the box 5. A hearing 6 is providedbetween the box 5 andthe axle 4.

The lubricator comprises a cellar or lubricant reservoir 7 which isprovided with a cylindrical follower cavity 8 disposed substantially inthe centre of the cellar member. The space in the cellar above thecavity 8 is substantially rectangular in horizontal cross section and isprovided with a top enclosure which may take the form of a cover 9 whichis tightly secured in place by the screws 10. This cover or plate 9 isformed to fit the curvature of the journal 4 and is preferably made ofsome bearing metal such, for example, as brass. A number of longitudinallubricant distributing grooves 11 are provided on the journal face ofthe plate 9 and each groove 11 is provided with a plurality 1927. SerialNo. 191,291.

of spaced holes 12 communicating with the interior of the cellar.

A spring 13 at each corner of the lubricator bears on the box spreader14 and is seated in a downwardly open cup 15 on the cellar member 7These springs 13 preferably are designed to urge the plate 9 against thejournal with a substantial pressure, say two'or three pounds per squareinch. A. substantial pressure on the journal makes for a tight joint andthus reduces leakage and loss of the relatively soft grease.

The follower is of the plunger or pump type and comprises a circularplate 16 and a ring 17 between which is clamped a fibrous '60 packingring 18. The edge of this packing ring 18 is turned upwardly when thefollow-er is inserted in the cavity 8 and fits tightly against thecylindrical wall of the cavity. The members of the follower may besecured 05 together by rivets 19. A spring 20'urges the followerupwardly thus feeding the grease to the journal thru theopenings 12 andthe grooves 11.

At this point it should be observed that the type of feed of thelubricant produced by applicants novel arrangement of relatively strongspring means for urging the cellar to ward the journal and relativelyweak spring means for urging the follower upwardly in 7 Y the cellar,prevents the escape or discharge of the lubricant from the grooves 11and the openings 12 in the curved plate 9 except by the wiping action ofthe journal when rotating. In other words, the grooves 11 and theopenings 12 are sealed'against the journal in such manner that nolubricant may flow therefrom when there is no relative movement betweenthe journal and the top plate 9. The only lubricant, therefore, which isdischarged through the openings and the grooves is that which is wipedor carried away by the bearing surface of the-journal when the latter isrotating or moving relatively to the curved plate 9.

wardly. An opening Q lis provided in the bottom of the cellar below thefollower in order that air may enter into or be exhausted from thecellar when the follower moves.

- A pin'22, secured in lugs 23 on the box 5, retains the lubricator inposition.

According to the foregoingl provide a lubricator which is adapted to usea relatively light or soft grease and which, as an incident to this,eliminates all the laborand trouble of removing lubricator end platesand I parts ordinarily encountered when refilling a lubricator adaptedto use a solid cake of grease.

Furthermore, it is to be noted that the cellar forms a substantiallycomplete enclosure for the lubricant, and loss of lubricant is reducedto a-minimum as the distributing grooves 11 v are practlcally sealed bythe ournal.

I claim: v j 1. A journal lubricator including a cellar member having.an upper relatively large portion with a top having an openingtherethrough and curved to fit thejournal and a H relatively small lowercylindrical portion depending from and in communication with the upperportion, means for urging the cellar toward the ournal with pressuresufficient to seal said opening thereagainst, a circular followerfitting said lower v for urging the follower upwardly to feed portionand means lubricant throughsaid opening to the surface of the journal.

2.,A'journal lubricator including a cellar member having an, upperrelatively'large squared portion witha top having an openingtherethrough and curved to fitthe jour- ,nal, means for urging sa1dcellar toward the journal with force suliicient to seal said openingthereagainst including spring means po- .sitioned under toe corners ofthe said upper portion, said cellar also being provided with arelatively small cylindrical portion depending from the upper portionbetween said spring means, a circular follower fitting said lowerportion and means for urging the follower upwardly to feed lubricantthrough said opening to the surface of the journal.

3. A ournal lubricator of the character described including a cellarmember having lubricant discharging passages therein adacent thejournal, means for urging the cellar toward thejournal with forcesufficient to seal the saidpassagesthereagainst, means in the cellar forfeeding lubr1cant through openings adjacent to the urging the. cellartoward the" ournal and the passages to the surface of the journal, saidcellar and the last mentioned means cooperating to provide a completeenclosure for the lubricant with the exception of said passages, and acellar refillingmeans including a connection for admitting lubricantunder pressure.

A journal lubricator including a cellar member having its top curved tofit the journal, said top having openings therein and relatively largesmooth areas at the sides of the openings contacting with the ournal,means for urging the cellar toward the journal with force sufficient toseal said openings thereagainst, and means in the. cellar for feedingthe lubricant through the openings to the surface of the journal, saidlast mentioned means and said cellar cooperating to rovide a completeenclosure for the lubrigrooves in its uppersurface extended len'gth-.wise of the journal the openings, means for urging the cellar towardthe ournal withfo'rce sufii'cient to seal said grooves thereagainst, andmeans in the cellar for feeding the lubricant through the openings'intosaid grooves to contact with the ournal bear ng'surface, saidlastmentioned means and said cellar cooperating to provide a completeenclosure for the'lubricant with the exception of said openings,

6. A journal lubricator of the character described including a cellarmember having journal, means for means in the cellar for feedinglubricant through the openings to the surface ofthe journal, said firstmentioned means being of strength sufficiently greater than the strengthof said second mentioned means to'seal said openings j ing means andsaid cellarcooperating to provide a complete enclosure for thelubricantwith the exception of said openings.

7 A journal lubricator openings adjacent to the journal, spring meansfor urging the cellar toward the jour and communicating with" againstthe journahand said feedr including a cellar member with its topcurvedto fit the journal,

means, of greater strength thannal and spring means in the cellar forfeeding lubricant through said openings to the journal surface, saidfirst mentioned spring means being of greater strength than the otherspring means, and said feeding means and said cellar cooperating toprovide a complete enclosure for the lubricant with the exception ofsaid openings.

In testimony whereof I have hereunto signed my name.

FREDERICK W. MARTIN.

